 | | Journal (article/letter/editorial) | | A CONTRIBUTION VIRGINIA TO THE GEOLOGY OF EMERY DEPO, SITS. • THOMAS THE L. WATSON'. CONTENTS. Introduction...four--Greece and Turkey in Eurasia and New York and Virginia in the United States--are geneticallyassociatedwith...AREA IN PITTSYLVANIA C0., VA. Fig. x7. Geologic Map of Emery Area in Pittsylvania Co., Virginia. The...The Chesteremery depositsin Hampden County, Massachusetts, have been traced for several miles in a narrow...settsdeposits areof thefirstty•e,whilethoseof NewYork and Virginia are of the latter type. The purposeof this paperis |  | | Report (issue) | | Wilmington Wilmington, N.C. William S. Henika Virginia Division of Mineral Resources Charlottesville.... . . . . . . . . iii Sandy Level Quadrangle, Virginia: Its Geology and Regional Interpretation (C.R.... . . . 7 Metamorphic Gradients in Pittsylvania County, Virginia (J. P. Gregory). . . . . . . . . . ... 49 Cataclastic Zone Associated with the Davie County Triassic Basin (D. V. Milton). . . . . . . . ....from the Dan River (North Carolina) - Danville (Virginia) Basin (E. I. Robbins and A. Traverse). . . . |  | | Report (issue) | | is a feldspathic quartz the Accomac trough in Virginia, is interbedded dark-col sand (fig. 2.), the... PARSONSBURG SAND IN CENTRAL DELMARVA PENINSULA ZIRCON TOURMALINE RUTILE HORNBLENDE EPIDOTE GARNET ACTINOLITE...tendency of the Parsonsburg Sand to have a higher zircon-tourmaline-rutile concentration than do all the...pit on the divide north of Parsons burg, Md. (Pittsville 172, fig. 4) described in detail below. It was...grains. On the north wall of the borrow pit (Pittsville 17) the sand directly overlying the basal peaty |  | | Journal (issue) | | No. 3 WNERAL AND FOSSIL COLLECTING SITES IN VIRGINIA Palmer C. Sweet and 0. Allen Penick, Jr. - 9...fee basis for people interested in collecting in Virginia (Figure 1). All the listed localities were open...available from the Virginia Division of Mineral Resources, Box 3667, Charlottesville, Virginia, 22903. General...official State Highway Map as well as individual county road maps, both of which are available from the... in Virginia. AMETHYST SITE This site is located 4.35 miles southeast of Amherst, Amherst County, about |  | | Report (issue) | | __——————————————— Interpretation ___________————————— Pittsville, Md ______________________ Sand mineralogy ___________——————...Jersey, Pennsylvania, Delaware, Maryland, and Virginia _ Chart showing formations and informally named...Columnar section of the Parsonsburg Sand near Pittsville, Md _______________________________— X-ray traces...clay-silt fraction in the Parsonsburg Sand near Pittsville, Md _____________________—_— Columnar section...several Coastal Plain formations from New Jersey to Virginia. This region was divided into three study areas: |  | | Journal (article/letter/editorial) | | Granite Plutonism in the Mid-Proterozoic of Wisconsin, USA J. Lawford Anderson 1, Robert L. Cullers a, and W...CA 90007, USA 2 Department of Geology, Kansas State University, Manhattan, Kansas 66506, USA 3 Department...Geology, University of Kansas, Lawrence, Kansas 66045, USA Abstract. A magmatic gap from 1.82 to 1.76 b.y....crystallization. Removal of the accessory minerals apatite, zircon, and allanite resulted in the REE depletion with...b.y. metaluminous granite of Kerry Mound near Pittsville (Van Schmus, in press) and the 1.84-1.85 peraluminous |  | | Report (issue) | | of weathering profile in parabolic dune near Pittsville, Md ————————— Cross section of dune near Wango...sand fraction. The heavy-mineral assemblages (high zircon, tourmaline, rutile) are more mature than in most...Exposure in borrow pit north of Parsonsburg, Md. (Pittsville 17, fig. 16). C6 GEOLOGIC STUDIES IN EMERGED...two localities (the uplands east of Pittsville, Md.), the zircon, tourmaline, and rutile percentages...parabolic dune at Glass Hill, about 3 km west of Pittsville, Md. (fig. 10). Massive sand about 1.75 m (70 |  | | Report (issue) | | the cover—Turquois crystals from Lynch Station, Virginia; x ca.; pho tograph by Neal Ycdlin; color plates...C. A. Michael. COLD NUGGET FROM SPOTSYLVANIA COUNTY: Longest dimension approximately 13 cm., photograph...of Virginia R. V. DIETRICH* Professor of Geology and Associate Dean of Arts & Sciences, Virginia Polytechnic...Polytechnic Institute Research Division Bulletin 47 Virginia Polytechnic Institute, Blacksburg, Va. 24061 *... © R. V. Dietrich and the Research Division of Virginia Polytechnic Institute, 1970 Printed and bound |  | | Report (issue) | | about 10 miles. The area is principally in Roane County. Ore has been mined in many places along the west...about 9 miles, lying partly in Roane County and partly in Rhea County. -Much of this strip is in the bottom...bordered by a fault for about 5 miles. Near the county line on the outcrop the rocks dip 20° to 30° SE...Lookout Mountain in the southern part of Walker County, Ga. The rock structure in Pigeon Mountain is synclinal...southeast, in the southeastern part of Gunnison County. Detailed'maps of the ore bodies were made, to |  | | Journal (issue) | | isolated from adjacent peaks emitted by other 10 VIRGINIA DIVISION O F MINERAL RESOURCES Vol. 25 Table...for disequilibrium in the uranium- I No. 2 VIRGINIA MINERALS 238 series as compared with the shorter-lived...thorium are found in accessory minerals such as zircon, monazite, sphene, apatite and others that are...igneous rocks is contained in the accessory minerals zircon, apatite, and sphene. Pyrochlore, allanite, xenotime...radioactivity of selected rocks. Rock Type Vol. 25 VIRGINIA DIVISION OF MINERAL RESOURCES High Moderate |  | | Report (volume) | | the James River-Roanoke River Manganese District Virginia GEOLOGICAL SURVEY BULLETIN 1008 Geology...oftheJatnes River-Roanoke River Manganese District Virginia By GILBERT H. ESPENSHADE GEOLOGICAL SURVEY ...Descriptions of mines and prospects-Continued Campbell County-Continued Drinkard and nearby prospects _________________________... 7. 8. 9. 10. 11. 12. · manganese district, Virginia. showing distribution of quartzite, white marble...manganese district, Virginia. Geologic map of the Cabell and Bugley mines, Nelson County, Va. Plans, projection |  | | Report (issue) | | to the south on the Cape Charles Peninsula in Virginia. Geologic maps of the peninsula at 1:250,000 scale...New Jersey and to the southwest in Maryland and Virginia. Our study was concentrated in the lower part...peninsula between lat 39° N. and the Maryland-Virginia State line, where the maximum altitude is slightly...coast from near Ocean City, Md., south to the Virginia-Maryland border. Remnants of the same scarp extend...for example, that the St. Marys For mation in Virginia has a distinctly younger fauna than does the St |  | | Report (issue) | | 1980; Sims and others, 1984), and in Dickinson County, northern Michigan (James and others, 1961), older... or more old (Goldich and Wooden, 1980). Also, zircon dating by ion microprobe methods indicates that...age. 207 Pb/ 206 Pb ages on several fractions of zircon range from 3,199 to 3,411 m.y., and a primary age...by a concordia plot (Peterman and others, 1986). Zircon dating by the ion microprobe has yielded a somewhat...unnamed, fault-bounded antiformal blocks in Dickinson County (James and others, 1961). The Southern complex |  | | Journal (article/letter/editorial) | | GeologicalSurvey National Center--Stop 954 Reston,Virginia 22092 Presidential Address PRECAMBRIAN TECTONICS...the east end of the Gogebiciron range,hasa U-Pb zircon age of 3,300-3,500 m.y. (Peterman et al., 1976)...the addi,tion tained on migma•titicgneissesfrom Pittsville, about in part by underplating. 80 km southwestof...from the HemlockFormationhas beendatedby the U-Pb zircon methodat 1,950 m.y. (Banks and Van $chmus,1972)...model lead ages f,rom two contained volcanogenic zircon age of 1,800 m.y. and an Rb-Sr whole-rock massive |  | | Journal (article/letter/editorial) | | 800, and 2,738 m.y. (Nunes and Thurston, 1978). Zircon ages of plutonic rocks in the Slave Provinceare...to 1,500 m.y. ago during a midshort spanof time. Zircon agesdeterminedon rocks dle Proterozoicperiodof...Rb-Sr WHOLE ROCK 2.7 2.8 2,640 m. y.) U-Pb ZIRCON /• U-PbSPHENE I ' 1 d .•, 2.3 2.4 2.5 2...southernmargin of the Wabigoon whole-rock and U-Pb zircon ages of rocks in the greenstone-granite belt, the...exceptionof the Rb-Sr isochronfor volcanicrocksof the zircon ages. Disturbanceof the Rb-Sr systems the Newton |  | | Journal (article/letter/editorial) | | metapelites, Virginia, USA A . E . GATES Department of Geology, Rutgers University, Newark, Nj 07702, USA J ....27695-8208, USA ABSTRACT Metapelites in the Altavista area, southwest Virginia Piedmont, USA, underwent...400-800 gamma magnetic highs on aeromagnetic maps (Virginia Division of Mineral Resources, 1970) which are...rosettes or plates aligned in the foliation with zircon and rutile inclusions and remnant biotite along...mineral resources of the Lynchburg quadrangle, Virginia. Virginia Division of Mineral Resources Bulletin, 74 |  | | Report (volume) | | .........Prof. George H. Perkins, Burlington. Virginia...........Dr. Thomas L. Watson, Charlottesville...Washington....... Prof. Henry Landes, Seattle. West Virginia... .Dr. I. C. White, Morgantown. Wisconsin......See Bauxite and Hallpysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found...commercial quantity or quality. Asphalt. Colbert County, small quantity has been shipped from near Leighton;...following localities: Bibb County, Pratts Ferry; Calhoun County, near Tampa; Clay County, T. 20, Pv. 7 E.; Jefferson |  | | Report (volume) | | ............................................. Virginia......................................................................................... West Virginia.................................................See Bauxite and Halloysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found...commercial quantity or quality. Asphalt. Colbert County, small quantity has been shipped from near Leighton;...following localities : Bibb County, Pratts Ferry; Calhoun County, near Tampa; Clay County, T. 20 S., R. 7 E.; |  | | Report (volume) | | assachusetts, Connecticut, New jersey, Pennsylvania, Virginia , Maryland , North Carolina, and other Eastern...Massachusetts, Connecticut, New Jersey, Pennsylvania, Virginia, Maryland , North Carolina, and South Carolina...appropriate, the applicable early Mesozoic basin, State, county, or 7 1/2minute USGS topographic quadrangle covered...the State are cited. More than one basin, State, county, or quadrangle may appear for an entry. A State...C.-S.C.) Deep River (N.C.) Durham (N.C.) Davie County (N.C.) Dan River and Danville (N.C.-Va.) Scottsburg |  | | Book (edition) | | mmed at Broken Arrow aud Trout creek, in Sc. Clair county. The strata in this field are more faulted und...prong of Canoe creek, in St. Clair county, to Ha\sop creek, in Bibb county, a distance of 60 miles. Down to...to Helena, in Shelby county, the field has an average width of 5 or 6 miles. Below that point the width...miles being in the latitud" of Blocton, in Bibb county. The south ern end of this field has a greater...Jefferson county; Helena, Montevallo, and Brierfield, Shelby county; and at Blocion. Bibb county. The Warrior |  | | Book (edition) | | describes sites under of the nearest town and county. and the many maps included book contain such...intersect at right angles. The crystals, such as zircon, commonly have a square cross-section. The hexagonal... (^h /&> ^& \b^ ^ VESUVIANITE WILLEMITE ZIRCON CRYSTALS How 10 / gem to identify minerals...crystalline. Some, such as the diamond and zircon, are outstand- depends on refractive index, the...lie in the range between opal (sp. gr. 2.1) and zircon (sp. gr. 4.7), quick and accurate determinations |  | | Book (edition) | | MARIN COUNTY FREE LIBRARY 3 1111 00289 4184 \ I s Fifth Revised Edition A complete, state-by-state...intersect at right angles. The crystals, such as zircon, commonly have a square cross-section. The hexagonal...PHENACITE QUARTZ CRYSTALS V^v VESUVIANITE WILLEMITE ZIRCON CRYSTALS HOW TO IDENTIFY GEM MINERALS Cleavage...and crystalline. Some, such as the diamond and zircon, are outstanding for brilliance and fire. Brilliance...lie in the range between opal (sp. gr. 2.1) and zircon (sp. gr. 4.7), quick and accurate determinations |  | | Book | | HfiRIN COUNTY FREE LIBRfiRY 311110G386652Q I V Russell P MacFal A COLOR TREASUF FOR COLLECTORS...to Hunting Locations ? i 9 GIVEN TO THE MARIN COUNTY LIBRARY BY MARI N L MTNF.RAT. SOCTETY DAVID...Geological Surveys Distribution Branch. 1200 Virginia 22202. Those S for Eads Street. Arlington...may be able to buy specimens. map of Keweenaw County. Mich- Part of the U.S. Geological Survey topographic...ninety-degree angles. These are prized as ornaments. Virginia and Georgia are major sources of such crystals |  | | Report (volume) | | producers and others of such minerals as nionazite, zircon, iridosmine, platinum, and lately minerals containing...of a public or more enduring nature, as State, county, township, and city boundary lines; reservation...progressing in New York, Pennsylvania, Ohio, West Virginia, Maryland, Maine, Kentucky, Alabama, Louisiana...blue for drainage, and brown for relief. Town and county maps are consulted, correspondence is entered into...It will show State and county boundaries, with the names and locations of county seats, and all railroads |  | | Book | | about 20 feet in the central part of Prince Georges County and gradually disappears. The beds of the Monmouth...they enter the Eastern Shore of Maryland in Kent County is a series of deposits which, on the basis of...River in Kent County, along the Magothy, Severn, South, and West Rivers in Anne Arundel County, along the...southwestern portion of Charles County, and in the bluffs on the Virginia side of the Potomac River. The...feet in depth in the vicinity of Parsonsburg and Pittsville encountered gas which was used as fuel (15, p |
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